CN212216903U - A kind of steel bar straightening and cutting machine driven by servo motor - Google Patents

Abstract

The utility model discloses a steel bar straightening and cutting machine driven and pressed down by a servo motor, comprising a horizontal straightening part, a traction part, a vertical straightening part, a straightening machine cutting mechanism and a straightening machine base. , The traction part, the vertical straightening part and the cutting mechanism of the straightening machine are all arranged on the base of the straightening machine. The invention is an electrical automation equipment, which is mainly used in the adjustment process of the downward pressure of the traction and straightening parts of the steel bar straightening machine. The servo motor drives the rotation of the lead screw to drive the straightening roller connected with the slider to adjust the pressing amount. The force of the straightening roller is more rationalized and the service life of the straightening roller is improved.

Description

A kind of steel bar straightening and cutting machine driven by servo motor

technical field

The utility model relates to the technical field of building structures, in particular to a steel bar straightening and cutting machine driven and pressed by a servo motor.

Background technique

As a necessary basic material in the construction industry, with the rapid development of domestic infrastructure construction, its demand is increasing day by day, and its application is huge, accounting for about 10% of the project cost and about 20% of the total steel output of the whole society. In 2018, the sales volume of steel bars in my country was 199.98 million tons. Such a huge demand for steel bars has promoted the development of the steel bar processing machinery industry. During the process of rolling, cooling and transportation of steel bars, due to various factors, various shape defects often occur, such as arc bending. In order to eliminate these bending, it is necessary to straighten the steel bars. The straightening equipment is the machine that realizes this process. In the process of straightening, the reduction is one of the most important parameters of the straightening system. In the same straightening system, a slight adjustment of the reduction of the straightening roller will affect the straightening effect of the entire steel bar. At this stage, the adjustment of the pressure usually relies on the experience of the workers for manual adjustment. There is no theoretical basis for this adjustment method, and the straightening effect is unstable. Therefore, the method of obtaining a reasonable amount of depression through theoretical calculation and then adjusting the depression amount of the straightening roller through electrical equipment is more and more recognized by the public. The new type of servo motor-driven steel bar straightening and cutting machine of the present invention is the amount of downward pressure obtained by scientific calculation according to the type and bending degree of the steel bar currently being processed. Calculated under the premise that the overall force of the straightening roller is the smallest, the use frequency of unreasonable loads can be reduced while the amount of pressing down is accurate, the unevenness of the bearing of the straightening roller can be reduced, and the risk of shaft breakage of the straightening roller can be reduced. Improve the service life of the straightening machine.

Utility model content

The purpose of this utility model is to provide a kind of steel bar straightening and cutting machine driven by a servo motor, and the specific technical method is to solve the above-mentioned technical problems, and the scheme is as follows:

A steel bar straightening and cutting machine driven and pressed by a servo motor, comprising a horizontal straightening part, a pulling part, a vertical straightening part, a straightening machine cutting mechanism and a straightening machine base; The straightening part and the cutting mechanism of the straightening machine are all arranged on the base of the straightening machine.

Said kind of steel bar straightening and cutting machine driven by a servo motor, the preferred solution is that the lateral straightening part includes a guide sleeve a, a straightening roller bearing a, a straightening roller a, a bottom plate of the lateral straightening part, a pre- Leave the threaded hole for fixing the base plate and the pressing device driven by the servo motor;

The straightening roller is connected to the bottom plate of the horizontal straightening part through bearings, the guide sleeve a is fixed on the bottom plate of the horizontal straightening part by welding, and the center of the guide sleeve a and the center of the groove of the straightening roller are kept on the same horizontal line, and the servo The motor-driven pressing device is fastened on the straightening base plate by means of screw connection.

Said kind of the steel bar straightening and cutting machine driven by the servo motor, its preferred solution is that the traction part includes the pressing device driven by the servo motor, the traction wheel, the sleeve, the traction wheel bearing, the traction box and the guide sleeve b ;

The traction wheel is installed on the traction box with the sleeve through the traction wheel bearing. The traction box is divided into upper and lower parts and assembled by bolts. The pressing device driven by the servo motor is fastened to the traction box by means of screw connection. On the box body, the guide sleeve b on the traction box is fixed at the center position of the two sets of traction wheels by welding, and the guide sleeve of the traction part should maintain a concentric positional relationship with the guide sleeve of the straightening part.

Said kind of steel bar straightening and cutting machine driven by a servo motor, the preferred solution is that the longitudinal straightening part includes a guide sleeve c, a threaded hole reserved for fixing the bottom plate, a bottom plate of the longitudinal straightening part, and a servo motor-driven Pressing device, straightening roller bearing b, straightening roller b;

The straightening roller is connected to the bottom plate of the longitudinal straightening part through the straightening roller bearing b, the guide sleeve c is fixed on the straightening bottom plate by welding, and the center of the guide sleeve and the center of the groove of the straightening roller are kept on the same horizontal line, The pressing device driven by the servo motor is fastened on the straightening base plate by means of screw connection.

Said kind of steel bar straightening and cutting machine driven and pressed by a servo motor, its preferred solution is that the cutting mechanism of the straightening machine comprises a servo motor, a cutting arm, an output shaft of the servo motor, a cutting arm, a pin shaft and a cutting part base;

The servo motor is mounted on the base of the cutting part, the output shaft of the servo motor is connected with the cutting arm by means of screw connection, and the cutting arm is connected with the cutting arm by cooperating with the pin shaft, and the motor power is transmitted to the cutting arm;

Said kind of steel bar straightening and cutting machine driven by servo motor, its preferred solution is that the pressing device driven by servo motor includes a motor boss, a servo motor, a motor output shaft, a countersunk screw hole, a coupling, a support. Frame, reserved screw holes for fixing support frame, lead screw, straightening roller c, roller shaft, slider, screw hole for slider connecting lead screw and bearing;

The servo motor is embedded on the support frame by means of interference fit through the boss, and the support frame is fastened to the box of the traction box with bolts through the reserved screw holes; the output shaft of the servo motor is connected with the coupling, and the coupling The countersunk head screw holes reserved on the device are added with countersunk head bolts to fasten the output shaft, and the other end of the coupling is connected with the lead screw; the servo motor records its own revolutions and converts it into the descending of the slider on the lead screw Or the distance of lifting will drive the straightening roller c to press down and lift up, and then precisely control the amount of pressing down; when the servo motor is working, the slider carries the straightening roller c connected by the roller bearing along the lead screw Moving up and down.

The preferred solution of the described servo motor-driven and pressed steel bar straightening and cutting machine is that the centers of the upper and lower traction wheels in the traction part are on the same vertical line.

A working process of a steel bar straightening and cutting machine driven by a servo motor: the straightening machine is turned on and enters the production and processing mode, and firstly, the test run is carried out (the straightening machine is in the manual state at this stage), and the steel bar to be processed is passed through the guide bush a and the working process. The guide sleeve b passes through the straightening part and the pulling part. Then, according to the specific model and physical parameters of the steel bar to be processed, the reduction amount suitable for the straightening of the steel bar is calculated. At this time, the servo motor driven reduction device installed in the straightening part and the traction part drives the servo motor according to the value of the reduction amount. Work. The servo motor receives the signal and converts the amount of depression into the number of revolutions it rotates, so that the slider with the straightening roller c is moved on the lead screw to adjust the amount of depression. After adjusting the pressing amount, turn the knob to make the steel bar advance 3-4 meters, and manually press the cut button to cut the steel bar. Measure whether the straightness of the finished steel bar can meet the requirements. If it can meet the needs, the parameters such as shearing length, processing quantity, straightening speed and other parameters of the steel bar can be set in detail through the operating console, and finally the straightening machine is adjusted from the manual mode to the automatic mode, so as to realize the whole process of the straightening machine from adjusting to cutting. Automatic processing; if the straightening quality cannot meet the requirements, it is necessary to rotate the knob to make the steel bar move back, and recalculate the reduction amount and adjust the reduction amount. Automated processing.

The beneficial effects of the utility model are as follows: at the present stage, the downward pressure of the traction and straightening parts is usually adjusted manually depending on the experience of the workers. This adjustment method has no theoretical basis and the straightening effect is unstable. Therefore, the method of obtaining a reasonable reduction amount through theoretical calculation and then adjusting the reduction amount of the straightening roller through electrical equipment has received more and more attention from relevant practitioners. In the present invention, the servo motor is used as the power to drive the screw to rotate to drive the straightening roller connected with the slider to adjust the pressing amount. To a certain extent, the force of each straightening roller is more rationalized and the service life of the straightening roller is improved.

Compared with the traditional straightening machine, the new straightening machine provided by the utility model has the advantages that the straightening mechanism and the traction part of the new straightening machine change the way of manually adjusting the pressing amount manually by relying on experience, and adopt the method of adjusting the pressing amount manually by means of experience. The motor drives the pressing device. This device can calculate the pressing amount according to the specific material and model of the steel bar to be processed. After the servo motor automatically adjusts the pressing amount according to the required amount, the adjustment process is more stable, accurate and rapid. The advantage is that the amount of down pressure can be precisely adjusted according to the need for straightening. The output shaft of the servo motor is connected with the coupling, and the countersunk head screw holes reserved on the coupling are added to the countersunk head bolts to fasten the output shaft. The other end of the device is connected with the lead screw. The servo motor formulates a pressing plan according to the specific conditions of the steel bar to be processed. The servo motor drives the straightening roller to press down and lift up by recording its own rotation and rotation and converting it into the distance of the descending or lifting of the slider on the lead screw, so as to precisely control the amount of depression. The lower device is more suitable for fast and mass production under working conditions. It can reduce the time for workers to wait for adjustment when adjusting the lower pressure, and can effectively reduce a series of problems such as errors caused by manual adjustment by workers based on experience.

Description of drawings

Figure 1 is a three-dimensional view of the general assembly of the straightening machine equipped with a servo motor-driven pressing device;

Fig. 2 is the horizontal three-dimensional view a of the pressing device driven by the servo motor driven by the straightening machine;

Fig. 3 is the three-dimensional view b of the horizontal direction of the pressing device driven by the servo motor driven by the straightening machine;

Figure 4 is a three-dimensional view a of the traction wheel of the pressing device driven by the servo motor driven by the straightening machine;

Figure 5 is a three-dimensional view b of the traction wheel of the pressing device driven by the servo motor driven by the straightening machine;

Fig. 6 is the horizontal three-dimensional view a of the pressing device driven by the servo motor driven by the straightening machine;

Fig. 7 is the three-dimensional view b of the horizontal direction of the pressing device driven by the servo motor driven by the straightening machine;

Fig. 8 is the shearing mechanism diagram of the steel bar straightening and cutting machine;

FIG. 9 is a schematic diagram of the cooperation of the pressing device driven by the servo motor;

Figure 10 is a schematic diagram of the cooperation of the pressing device driven by the servo motor.

In the figure, 1 horizontal straightening part, 2 servo motor driven pressing device, 3 traction part, 4 vertical straightening part, 5 straightening machine cutting part, 6 straightening machine base, 7 guide sleeve a, 8 straightening roller Bearing a, 9 straightening roller a, 10 horizontal straightening part bottom plate, 11 reserved threaded hole for fixing bottom plate, 12 traction wheel, 13 sleeve, 14 traction wheel bearing, 15 traction box, 16 guide sleeve b, 17 guide sleeve c. 18 reserved threaded holes for fixing the bottom plate, 19 vertical straightening part bottom plate, 20 straightening roller bearing b, 21 straightening roller b, 22 servo motor, 23 cutting arm, 24 servo motor output shaft, 25 cutting arm, 26 Pin shaft connecting cutting arm, 27 cutting part base, 28 motor boss, 29 servo motor, 30 motor output shaft, 31 countersunk head screw hole, 32 coupling, 33 support frame, 34 reserved screw holes for fixing support frame , 35 lead screw, 36 straightening roller, 37 roller shaft, 38 slider, 39 slider connecting screw hole, 40 bearing.

Detailed ways

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

A steel bar straightening and cutting machine driven by a servo motor, comprising a horizontal straightening part 1, a traction part 3, a vertical straightening part 4, a straightening machine cutting mechanism 5 and a straightening machine base 6, the horizontal straightening part 1. The traction part 3, the longitudinal straightening part 4, and the cutting mechanism 5 of the straightening machine are all arranged on the base 6 of the straightening machine.

The lateral straightening part 1 includes a guide sleeve a7, a straightening roller bearing a8, a straightening roller a9, a bottom plate 10 of the lateral straightening part, a threaded hole 11 reserved for fixing the bottom plate and a pressing device 2 driven by a servo motor;

The straightening roller a9 is connected to the bottom plate 10 of the horizontal straightening part through a bearing, the guide sleeve a7 is fixed on the bottom plate 10 of the horizontal straightening part by welding, and the center of the guide sleeve a7 and the center of the groove of the straightening roller a9 are kept at the same level. In a straight line, the pressing device 2 driven by the servo motor is fastened on the bottom plate 10 of the lateral straightening part by means of screw connection.

The traction part 3 includes a pressing device 2 driven by a servo motor, a traction wheel 12, a sleeve 13, a traction wheel bearing 14, a traction box 15 and a guide sleeve b16;

The traction wheel 12 is mounted on the traction box 15 with the sleeve 13 through the traction wheel bearing 14. The traction box 15 is divided into upper and lower parts and assembled by bolting, and the pressing device 2 driven by the servo motor is connected by screws. It is fastened on the box body of the traction box 15 by means of welding, and the guide sleeve b16 on the traction box 15 is fixed at the center position of the two sets of traction wheels 12 by welding. a7 maintains a concentric positional relationship.

The longitudinal straightening part 4 includes a guide sleeve c17, a threaded hole 18 reserved for a fixed bottom plate, a bottom plate 19 of the longitudinal straightening part, a pressing device 2 driven by a servo motor, a straightening roller bearing b20, and a straightening roller b21;

The straightening roller b21 is connected to the bottom plate 19 of the vertical straightening part through the straightening roller bearing b20, the guide sleeve c17 is fixed on the bottom plate 19 of the vertical straightening part by welding, and the center of the guide sleeve c17 is the center of the groove of the straightening roller b21. Keeping on the same horizontal line, the pressing device 2 driven by the servo motor is fastened on the bottom plate 19 of the longitudinal straightening part by means of screw connection.

The straightening machine cutting mechanism 5 includes a servo motor 22, a cutting arm 23, a servo motor output shaft 24, a cutting arm 25, a pin shaft 26 and a cutting part base 27;

The servo motor 22 is mounted on the cutting part base 27, the output shaft 24 of the servo motor is connected with the cutting arm 23 by means of screw connection, and the cutting arm 23 is connected with the cutting arm 23 by cooperating with the pin shaft 26, and is connected to the cutting arm 23. The motor power is transmitted to the cutting arm 23;

The pressing device 2 driven by the servo motor includes a motor boss 28, a servo motor 29, a motor output shaft 30, a countersunk screw hole 31, a coupling 32, a support frame 33, a reserved screw hole 34 for fixing the support frame, and a lead screw. 35. The straightening roller c36, the roller shaft 37, the slider 38, the screw hole 39 of the slider connecting the screw and the bearing 40 are composed;

The servo motor 29 is embedded on the support frame 23 by means of interference fit through the motor boss 28, and the support frame 23 is fastened on the box body of the traction box 15 with bolts through the reserved screw holes 34 for fixing the support frame; the servo motor 29 The motor output shaft is connected with the coupling 32, the countersunk head screw holes 31 reserved on the coupling 32 are added with countersunk head bolts to fasten the output shaft motor output shaft 30, and the other end of the coupling 32 is connected with the lead screw 35 ; The servo motor 29 drives the straightening roller c36 to press down and lift up by recording its own revolution and converting it into the distance that the slider 38 on the lead screw 35 is lowered or lifted, so as to precisely control the amount of depression. ; When the servo motor 29 is working, the slider 38 moves up and down along the lead screw 35 with the straightening roller c36 connected together by the roller bearing.

The centers of the upper and lower traction wheels 12 in the traction part 3 are on the same vertical line.

A working process of a steel bar straightening and cutting machine driven by a servo motor: the straightening machine is turned on and enters the production and processing mode, firstly, the test run is carried out (the straightening machine is in the manual state at this stage), and the steel bar to be processed is guided through the guide sleeve a. The sleeve b goes through the straightening part and the pulling part. Then, according to the specific model and physical parameters of the steel bar to be processed, the reduction amount suitable for the straightening of the steel bar is calculated. At this time, the servo motor driven reduction device installed in the straightening part and the traction part drives the servo motor according to the value of the reduction amount. Work. The servo motor receives the signal and converts the amount of depression into the number of revolutions it rotates, so that the slider with the straightening roller c is moved on the lead screw to adjust the amount of depression. After adjusting the pressing amount, turn the knob to make the steel bar advance 3-4 meters, and manually press the cut button to cut the steel bar. Measure whether the straightness of the finished steel bar can meet the requirements. If it can meet the needs, the parameters such as shearing length, processing quantity, straightening speed and other parameters of the steel bar can be set in detail through the operating console, and finally the straightening machine is adjusted from the manual mode to the automatic mode, so as to realize the whole process of the straightening machine from adjusting to cutting. Automatic processing; if the straightening quality cannot meet the requirements, it is necessary to rotate the knob to make the steel bar move back, and recalculate the reduction amount and adjust the reduction amount. Automated processing.

Claims (7)

1. The utility model provides a bar straightening cutter under servo motor drive pressure which characterized in that: the straightening machine comprises a transverse straightening part, a traction part, a longitudinal straightening part, a straightening machine cutting mechanism and a straightening machine base, wherein the transverse straightening part, the traction part, the longitudinal straightening part and the straightening machine cutting mechanism are all arranged on the straightening machine base.

2. A servo motor driven bar straightening and shearing machine according to claim 1, characterized in that: the transverse straightening part comprises a guide sleeve a, a straightening roller bearing a, a straightening roller a, a transverse straightening part bottom plate, a threaded hole reserved for a fixed bottom plate and a pressing device driven by a servo motor;

the straightening roller a is connected to the transverse straightening part bottom plate through a bearing, the guide sleeve a is fixed to the transverse straightening part bottom plate in a welding mode, the center of the guide sleeve a and the center of the groove of the straightening roller a are kept on the same horizontal straight line, and the screw-down device driven by the servo motor is fastened to the transverse straightening part bottom plate in a threaded connection mode.

3. A servo motor driven bar straightening and shearing machine according to claim 1, characterized in that: the traction part comprises a pressing device driven by a servo motor, a traction wheel, a sleeve, a traction wheel bearing, a traction box and a guide sleeve b;

the traction wheel is arranged on a traction box with a sleeve through a traction wheel bearing, the traction box is assembled by an upper part and a lower part in a bolt connection mode, a pressing device driven by a servo motor is fastened on a traction box body in a threaded connection mode, a guide sleeve b on the traction box is fixed at the central positions of two groups of traction wheels in a welding mode, and the position relation of the guide sleeve b of the traction part and the position relation of the guide sleeve a of the straightening part are kept concentric.

4. A servo motor driven bar straightening and shearing machine according to claim 1, characterized in that: the longitudinal straightening part comprises a guide sleeve c, a threaded hole reserved for a fixed bottom plate, a longitudinal straightening part bottom plate, a pressing device driven by a servo motor, a straightening roller bearing b and a straightening roller b;

the straightening roller b is connected to the longitudinal straightening part bottom plate through a straightening roller bearing b, the guide sleeve c is fixed on the longitudinal straightening part bottom plate in a welding mode, the center of the guide sleeve c and the center of the groove of the straightening roller b are kept on the same horizontal straight line, and the screw-down device driven by the servo motor is fastened on the longitudinal straightening part bottom plate in a threaded connection mode.

5. A servo motor driven bar straightening and shearing machine according to claim 1, characterized in that: the straightener cutting mechanism comprises a servo motor, a servo motor output shaft, a cutting arm, a pin shaft and a cutting part base;

the servo motor is clamped on the base of the cutting part, an output shaft of the servo motor is connected with the cutting arm in a threaded connection mode, the cutting arm is connected with the cutting arm in a pin shaft matching mode, and power of the motor is transmitted to the cutting arm.

6. A servo motor driven bar straightening and shearing machine according to claim 1, characterized in that: the pressing device driven by the servo motor comprises a motor boss, the servo motor, a motor output shaft, a countersunk head screw hole, a coupler, a support frame, a reserved screw hole for fixing the support frame, a screw rod, a straightening roller c, a roller shaft, a sliding block, a screw hole for connecting the screw rod and a bearing;

the servo motor is embedded on the support frame through the boss in an interference fit mode, and the support frame is fastened on a box body of the traction box through a reserved screw hole by using a bolt; an output shaft of the servo motor is connected with a coupler, a countersunk bolt is added into a countersunk screw hole reserved on the coupler to fasten the output shaft, and the other end of the coupler is connected with a lead screw; the servo motor drives the straightening roller c to be pressed down and lifted up through converting the recorded revolution number into the descending or lifting distance of the sliding block on the screw rod, and then the pressing amount is accurately controlled; when the servo motor works, the slide block drives the straightening roller c connected together through the roller bearing to move up and down along the screw rod.

7. A servo motor driven bar straightening and shearing machine according to claim 3, characterized in that: the centers of the upper traction wheel and the lower traction wheel in the traction part are on the same vertical line.

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